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Computationally Efficient Multi-Cell Joint Channel Estimation in TDD-CDMA Systems

Peng XUE, Duk Kyung KIM

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Summary :

In this letter, a low complexity multi-cell joint channel estimation (MJCE) scheme is proposed. With proper arrangement of the multi-cell midamble matrix and channel impulse response (CIR) vector, the MJCE operation is formulated to solve a block-Toeplitz linear system. The block-Levinson algorithm is adopted to solve this problem instead of the Cholesky algorithm. Our results show that the proposed MJCE scheme can be a practical choice with significantly lower complexity, compared with the previous schemes with the Cholesky algorithm.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.9 pp.2465-2468
Publication Date
2010/09/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.2465
Type of Manuscript
LETTER
Category
Wireless Communication Technologies

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